石文瑄;陈美娜;席培恒;谷义杰;李娟英;

• 1:上海海洋大学水产动物遗传育种中心上海市协同创新中心

摘要(Abstract)：

本文选取泥炭、生物质炭、木炭和活性炭4种含碳材料,结合以经济底栖生物菲律宾蛤仔(Venerupis philippinarum)为受试生物的生物累积实验和Tenax连续萃取法,阐述不同碳质对沉积物中4种菊酯类农药生物有效性的影响,并将Tenax萃取结果与底栖生物的累积结果进行了相关分析。结果表明,碳质的添加导致沉积物中菊酯类农药的快速脱附组分(Frap)降低,极慢速脱附组分(Fv s)增大,生物有效性降低,且4种碳质对Frap的影响有所不同,然而因为菊酯类农药的理化性质,Frap的差异并不显著。Tenax 6 h和24 h的单点萃取组分与快速脱附组分相关性显著(P<0.0001),基本可以代替完整的脱附动力学评价生物有效性,但是对于组成复杂,有机碳(OC)和黑炭(BC)含量高的沉积物进行研究评价时仍应注意由此产生的偏离。Tenax快速脱附组分与2种底栖生物累积结果之间具有显著的相关性(R2=0.38,P<0.0001),表明在OC和BC含量不同的沉积物中,Tenax萃取技术也可以预测菊酯类农药在经济底栖生物菲律宾蛤仔体内的累积量,进而为沉积物中HOCs的环境质量和相关水产品的质量评估提供更为快捷、有效的参考依据。

关键词(KeyWords)： 菊酯类农药;碳质;Tenax萃取;生物有效性;沉积物

Abstract:

Keywords:

基金项目(Foundation): 基金项目:养殖水中疏水性有机污染物的原位仿生监测与去除(A1-2037-16-0001-12)

作者(Author): 石文瑄;陈美娜;席培恒;谷义杰;李娟英;

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DOI:

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